I also received a call. Said they would send over the police to arrest me but were giving me a chance to avoid that. All relating to having not paid my 2012 taxes, the IRS sending me 2 notices, me not responding, etc. None of which ever happened. It went on, with me knowing it was a hoax, with the person calling, (identifying himself as being from the Treasury Department) telling me to go to the bank and deposit funds into an account...that was until I said that I looked up the number on the web and it indicated....the phone went dead at that point.
Received same call July 21 2015: My name is Keith Martin. This message is intended to contact you regarding an enforcement action executed by the United States Treasury intending your serious attention. Ignoring this will be an intentional 2nd attempt to wipe an initial appearance before a magistrate judge or grand jury for a federal criminal offense. My # is 803 335 5246. I advise you to call and help us to help you.